Editing Object copying (section)

=== Deep copy ===
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| image1            = deep copy in progress.svg
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| alt1              = A deep copy in progress.
| caption1          = A deep copy in progress.
| image2            = deep copy done.svg
| width2            = 200
| alt2              = A deep copy has been completed
| caption2          = A deep copy has been completed.
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An alternative is a deep copy, meaning that fields are dereferenced: rather than references to objects being copied, new copy of objects are created for any referenced objects, and references to these are placed in B. Later modifications to the contents of either remain unique to A or B, as the contents are not shared.